Truss



(No Model.)

G. WILKINSON. TRUSS.

No.416,770. Patented emo, 1889.

N. PETERS. Plwlwliihogaphar, Waxhinglon. D. C.

UNITED STATES].

PATENT OFFICE.

lrEORGE NVILKINSON, OF \VELLSBOROU'GH, PENNSYLVANIA, ASSIGNOR OFTHREE-FOURTHS TO JOHN V. BAILEYAND CHARLES \V. RYAN, OF SAME PLACE, ANDCHARLES M. MOORE, OF VVILLIAMSPORT, PENNSYLVANIA.

TRUSS.

SPECIFICATION forming part of Letters Patent No. 416,770, dated December10, 1889.

I Application filed March 18, 1889. Serial No, 303,735. (No model.)

v T at whmn it may concern:

Be it known thatI, GEORGE WILKINSON, a citizen of the United States, anda resident of Wellsborough, in the county of Tioga and State ofPennsylvania, have invented certain new and useful Improvements inTrusses; and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to letters of reference markedthereon, which form a part of this specification, and which improvementshave especial refer- 5 ence to Letters Patent granted to me June 28,

1887, the same being numbered 365,660.

Figure 1 of the drawings is a perspective view of my truss. Fig. 2 is ahorizontal section, partly broken away. Figs. 3 and 4 are sectionaldetails, and Fig. 5 is a detail.

The letter A designates a flat curved spring, and B is a round spring ofbrass wire. These springs are connected by .a hinge device C.

D D are the hernia-pads, connected to the round spring.

E is the inside lumbar cushion, secured to the flat spring and extendinglongitudinally along its inner wall to protect the body from anyinequality of surface which may existat the joint on account of theadjustment.

F is the rubber cushion at the end of the flat spring.

G G are the cover-sections, and H is the strap having a section ofelastic rubber K between its outer portion a and itsinner part b, whichis pivoted to the fiat or band spring.

The hinge device C consists of the parts 0 and d. The part c is made intapering form arched at its broader portion e,which is made in hooded orcup-like form to receive and cover the pivot end of the threadedstopguide g,which is provided with an adjustable stop-nut h. The lateralwalls of the part@ are'made convex when they engage the end of the partd, as indicated at It, so that there will be a close joint at all timeswhatever be the adjustment and no projecting angles to irritate thebody. The part at of the hinge is channeled in its under or inner sideto receive the end of the flat spring A, so that it will be flush withthe edges of the plate or part d. This part is provided with theperforatedstop projection or lug Z, through which the guide g projectsand against which the stop-nut It bears. easily bent to any form desiredto suit the shape of the body, and it is rigidly secured in the socketof the hinge-section c by a rivet. The elongated cushion E is providedwith a small nut-plate within its middle portion to engage the end ofthe fastening-screw e, which passes through the fiat spring A nearthehinge and extends from said hinge around the lumbar muscle,protecting the same and rendering thetruss easy to wear. The springs arecovered by the leather cover-sections G and G, the former being a longslip cover provided with an opening in its middle portion' at g for thehinge and with a flap g" to cover said opening. When the hinge-pin p isremoved, the cover-section G can be readily removed from the springs byslipping it from their ends. The short section G can be slipped off overthe end of the round spring when the outer holder V of the outerhernia-pad D is removed. This outer or end holder V is pivoted to themiddle portion of the dou ble-slotted adjustable plate V ,Which isconnected to the hernia-pad D by the guide-screws o and o. The holder Vis a socket-plate having a perforation to extending longitudinallythrough its inner end to receive the end of the round spring B, and saidholder can be adjusted on said round spring toward or from its end,being secured in position after adjustment by the setscrew to. The innerholder Z for the inner hernia-pad D consists of a journal-piece 2,having a transverse perforation 2', through which the round spring Bpasses. At-the end of the journal 2: is the flange z", and J is theslotted holder-arm, which is provided with the perforated bearing-lug J,which engages the journal-piece between the flange and the round spring.A set-screw 8 passes through a threaded perforation in the lug ,J tohold the slotted holder-arm to its adj ustment on the journal-piece, anda set-screw s The round brass spring is 55 passes through an axialperforation in the journal-piece z to the round spring and serves tohold said journal-piece to its adjustment on said spring. The hernia-padcarries the clamp-screws w, which through the slot of the holder-arm andenable the latter to adjust the pad higher or lower, as may benecessary.

The hernia-pads are reversible and may be adjusted one below and theother above the spring and at any desired angle. The pressure upon thepads is direct, the spring being arranged directly over the pads, andthe tendency of the spring to move upward is therefore in a greatmeasure avoided.

'Har'ing'desorib'ed this invention, what 1 claim, and desire to secureby Letters Patent, is-

In a truss having a flat spring and a round spring hinged together,'theeup-forniedsooket piece forining one seetlon of the hinge, provided withthe convex lateral joint walls K and having the end of the threadedguide pivoted within its enlarged hooded end 6, substantially asspecified.

In testimony whereof I affix m y signature in presence of two witnesses.

GEORGE WILKINSON. Witnesses:

bro. I. MITCHELL, DAVID CAMERON.

